Biology Mcqs

Nobel prize to Komberg and Ochoa was given for ________?A. Artificial synthesis of genes
B. Chemistry of DNA and RNA
C. One gene one enzyme hypothesis
D. Artificial sysnthesis of DNA

 

The term ‘gene’ refers to __________?

A. A portion of RNA
B. A linkage group
C. A portions of DNA
D. A sequence of Amino

In chrosomes, the material controlling heredity is ________ ?

A. DNA
B. Histones
C. Chromocentres
D. RNA

The function of chrosomes of carrying genetic information from cell generation to another is performed by _________?

A. RNA
B. DNA
C. Histones
D. Calcium

Genes are made up of ________ ?

A. Histones
B. Lipoproteins
C. Polynucleotides
D. Hydrocarbons

The chromosomes as thread like structures in nucleus was first described by ________?

A. Mendel
B. Strasburger
C. Darwin
D. Levitzky

Lampbrush chromosomes are found inside _______?

A. Salvary glands of Drosophila
B. Salvary gland of silk moth
C. Oocytes of frog
D. Nucleus of man

A normal metaphase chromosome with a midial centromere is ________?

A. Metacentric
B. Sub-metacentric
C. Acrocentric
D. Telocentric

The term ‘gene’ was first used by _______?

A. Johannsen
B. Mendel
C. Lemark
D. Cuvier

Wilkins X-ray diffraction showed the diameter of the DNA helix as ________?

A. 10A
B. 20A
C. 30A
D. 40A